Health

Body Fat % (US Navy)

Estimate body fat percentage using the US Navy circumference method and break it down into lean versus fat mass.

body fatcomposition
Body Fat %

US Navy method using circumference measurements for a solid quick estimate.

Body fat percentage
16.9%
Lean mass estimate (kg)
62.3
Fat mass estimate (kg)
12.7

US Navy body fat equations

For males: %BF = 495 / [1.0324 − 0.19077 log₁₀(waist − neck) + 0.15456 log₁₀(height)] − 450. For females, replace the numerator with waist + hip − neck and swap constants per the Navy formula.

How to use

  1. Select gender to toggle the correct circumference fields.
  2. Enter height plus waist, neck, and (for females) hip measurements in centimeters.
  3. Provide body weight to translate the percentage into lean and fat mass estimates.

Example

Input: Male, Height = 175 cm, Waist = 85 cm, Neck = 38 cm, Weight = 75 kg

Output: Body fat ≈ 16.9%, Lean mass ≈ 62.4 kg, Fat mass ≈ 12.6 kg

Student-friendly breakdown

This walkthrough emphasizes the most searched ideas for Body Fat % (US Navy): body fat calculator, body fat percentage calculator, body fat calculator navy, body fat bmi calculator. Start with the formula above, then follow the guided steps to double-check your work. For quick revision, highlight the givens, plug into the equation, and finish by verifying your units.

Need more support? Use the links below to open the long-form guide, browse additional examples, or hop into adjacent calculators within the same topic. Each resource is interlinked so crawlers (and readers) can discover the next best action within a couple of clicks—one of the easiest ways to lift topical authority.

Deep dive & study plan

The Body Fat % (US Navy) is a go-to tool whenever you need to us navy body-fat estimate with circumference measurements.. It focuses on body fat, composition, which means searchers often arrive with intent-heavy queries like “how to body fat % (us navy) quickly” or “body fat % (us navy) formula explained.” Use this calculator to capture those intents and keep learners on the page long enough to send positive engagement signals.

Under the hood, the calculator leans on for males: %bf = 495 / [1.0324 − 0.19077 log₁₀(waist − neck) + 0.15456 log₁₀(height)] − 450. for females, replace the numerator with waist + hip − neck and swap constants per the navy formula.—that’s why we surface the full expression (“Body Fat % (US Navy)”) directly above the interactive widget. When you embed that formula inside H2s or supporting paragraphs, you help both humans and crawlers understand what entity the page represents.

Execution matters as much as the math. Follow the built-in procedure: Step 1: Select gender to toggle the correct circumference fields. Step 2: Enter height plus waist, neck, and (for females) hip measurements in centimeters. Step 3: Provide body weight to translate the percentage into lean and fat mass estimates.. Each numbered instruction is short enough to scan on mobile but descriptive enough to satisfy Google’s Helpful Content guidelines. Encourage students to jot down units, double-check signs, and compare answers with the Example card to build confidence.

The Example section itself is packed with semantic clues: “Male, Height = 175 cm, Waist = 85 cm, Neck = 38 cm, Weight = 75 kg” leading to “Body fat ≈ 16.9%, Lean mass ≈ 62.4 kg, Fat mass ≈ 12.6 kg.” Pepper similar narratives throughout your copy (and internal links from related guides) so canonical search intents are answered without pogo-sticking back to Google.

Quick retention checklist

  • Speak the formula aloud (or annotate it) so the relationships stick.
  • Write each step in your own words and compare with the numbered list above.
  • Swap in new numbers for the Example to make sure the calculator (and your logic) handles edge cases.
  • Link out to at least two related calculators to keep readers exploring your topical hub.

FAQ & notes

How accurate is the US Navy method?

It provides a solid estimate when measurements are precise, but DEXA scans and calipers deliver more accurate body composition data.

Can I enter measurements in inches?

At the moment the calculator expects centimeters. Convert inches to centimeters (multiply by 2.54) before entering your numbers.

What formula does the Body Fat % (US Navy) use?

For males: %BF = 495 / [1.0324 − 0.19077 log₁₀(waist − neck) + 0.15456 log₁₀(height)] − 450. For females, replace the numerator with waist + hip − neck and swap constants per the Navy formula.

How do I use the Body Fat % (US Navy)?

Select gender to toggle the correct circumference fields. Enter height plus waist, neck, and (for females) hip measurements in centimeters. Provide body weight to translate the percentage into lean and fat mass estimates.